How to insert pictures and remove edges in CAD

I often encounter things like cad illustrations, sending emails or changing computers, but others can't see the pictures. These things are very crowded. Searching for information on the Internet, groping by myself, and finally finding a set of methods: 1. First, use the drawing program to open the picture to be inserted, then select Edit, Select All, and click Edit and Copy. 2. Click Edit-Paste Selection-Bitmap-OK in cad. If you choose an image primitive, you still can't see it on someone else's computer. 3. Click the picture to make sure that four grips appear. Right-click again, and a dialog box will appear to select OLE-Transform-Select Picture-OK. After the above three steps, it is done. To close the boundary of the raster image, you can use the command imageframe, OFF. Modify the border of the object image and set the value to 0 or 2. If set to 0, objects cannot be selected, but they can be printed. If it is set to 2, you can select objects without printing, but the setting of 2 seems to be unavailable until after 2005! ! Also, you can set it directly with the command "imageframe"!